Marlboro County, SC Water Table Trend
The nearest real water-table reading to Marlboro County, SC
The closest qualifying well to Marlboro County is 20 miles away in Scotland County, NC, where the trend runs rising, getting shallower over time.
Marlboro County itself has no monitoring well with enough history to call its own trend, so treat this as a regional estimate, not Marlboro County's own number. If you own a well here, comparing your own depth log against this regional figure is worth doing before assuming either way. See Scotland County, NC's full page. See the no-data guide for why a county this close to a qualifying well still doesn't get its own number.
Marlboro County, South Carolina in brief
About 25,498 people live across Marlboro County's 480 square miles, in South Carolina. USGS's National Groundwater Monitoring Network covers 1,449 of 3,222 US counties (45%) today; Marlboro County isn't one of them yet, see the methodology guide for the exact qualifying bar.